Eastman Chemical Co. has filed Patent Application No. 20130041053, which describes a process for depolymerizing scrap polyester and producing new materials.
David Moore and John Rees have filed Patent Application No. 20130040092, which describes a new type of composite building material partially made from waste carpet.
For more information on these or any patents, please consult the U.S. Patent Office database online .
Copies of patents can be ordered by number for $3 each from the Commissioner of Patents and Trademarks, P.O. Box 1450, Alexandria, VA, 22313-1450.
To return to the Plastics Recycling Update newsletter, click here